arm_debug: Support multiple APs per DAP and remove DAP from armv7* structs

[openocd.git] / src / target / cortex_m.c

diff --git a/src/target/cortex_m.c b/src/target/cortex_m.c
index b821bde8538406ca2a7198ae11f9c99c9ffd714f..f8a513265c93d3c147493fea09c0668e6d2ca103 100644 (file)
--- a/src/target/cortex_m.c
+++ b/src/target/cortex_m.c
@@ -1903,6 +1903,9 @@ int cortex_m_examine(struct target *target)
        struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
        struct armv7m_common *armv7m = target_to_armv7m(target);
 
+       /* Leave (only) generic DAP stuff for debugport_init(); */
+       swjdp->ap[armv7m->debug_ap].memaccess_tck = 8;
+
        /* stlink shares the examine handler but does not support
         * all its calls */
        if (!armv7m->stlink) {
@@ -1957,7 +1960,7 @@ int cortex_m_examine(struct target *target)
 
                if (i == 4 || i == 3) {
                        /* Cortex-M3/M4 has 4096 bytes autoincrement range */
-                       armv7m->dap.tar_autoincr_block = (1 << 12);
+                       swjdp->ap[armv7m->debug_ap].tar_autoincr_block = (1 << 12);
                }
 
                /* Configure trace modules */
@@ -2106,24 +2109,26 @@ static int cortex_m_init_arch_info(struct target *target,
 
        armv7m_init_arch_info(target, armv7m);
 
-       /* prepare JTAG information for the new target */
-       cortex_m->jtag_info.tap = tap;
-       cortex_m->jtag_info.scann_size = 4;
+       /*  tap has no dap initialized */
+       if (!tap->dap) {
+               tap->dap = dap_init();
+
+               /* prepare JTAG information for the new target */
+               cortex_m->jtag_info.tap = tap;
+               cortex_m->jtag_info.scann_size = 4;
+
+               /* Leave (only) generic DAP stuff for debugport_init() */
+               tap->dap->jtag_info = &cortex_m->jtag_info;
+       }
 
        /* default reset mode is to use srst if fitted
         * if not it will use CORTEX_M3_RESET_VECTRESET */
        cortex_m->soft_reset_config = CORTEX_M_RESET_VECTRESET;
 
-       armv7m->arm.dap = &armv7m->dap;
+       armv7m->arm.dap = tap->dap;
 
        /* Leave (only) generic DAP stuff for debugport_init(); */
-       armv7m->dap.jtag_info = &cortex_m->jtag_info;
-       armv7m->dap.memaccess_tck = 8;
-
-       /* Cortex-M3/M4 has 4096 bytes autoincrement range
-        * but set a safe default to 1024 to support Cortex-M0
-        * this will be changed in cortex_m3_examine if a M3/M4 is detected */
-       armv7m->dap.tar_autoincr_block = (1 << 10);
+       tap->dap->ap[dap_ap_get_select(tap->dap)].memaccess_tck = 8;
 
        /* register arch-specific functions */
        armv7m->examine_debug_reason = cortex_m_examine_debug_reason;